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1. Introduction
The SBC-6108/6112/6120 PV Charge Controller is designed for use with all types of 12V
photovoltaic(PV) panels/systems and different types of 12V batteries, such as wet or sealed lead
acid, lead calcium, lead antimony battery.
Numerous features are provided to maximize the performance of the system:
● Electronic Blocking (To protect against reverse polarity connection of PV panel and block
current from battery to PV Panel when voltage of Battery is higher than PV panel),
● Suitable for PV panels with Open Circuit Voltage from 17 to 23V,
● Rated charging/load current 8A (SBC-6108)/ 12A(SBC-6112) / 20A(SBC-6120),
● PWM Charging,
● Build-In Microprocessor for PV charge control to maximize the charging efficiency,
● Overcharge and Over-discharge Protection,
● 3-stage Charge Control(Bulk, Absorption & Float) to allow battery be left unattended for long
period ,
● Over Temperature Protection,
● Night Light Mode 10 selections
● Short-Circuit Protection at load terminal & Battery Reverse Polarity Protection at Battery
Connection Terminal,
● Tri-Color LED indication of system and battery conditions,
● Optional Temperature Sensor for compensated battery charging,
● Optional Remote Signal Terminal.
2. Control and Indicator
The following diagram shows the hardware interface of the PV Charge Controller.
Figure. 1 Front view of PV Charge Controller
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Battery LED Indicator
Lighting Programmer (Night-Light Mode Selections)
Charging LED Indicator
Reset button (see Section 3.4)
Temperature Sensor (Optional)
12V DC Load terminal with Low Voltage Disconnect/NIGHT-LIGHT mode (Section 4.3)
12V Battery connection terminal
PV Panel connection terminal
Remote Signal Terminal (Optional)
P.2